KR100988025B1 - Slim reactor using fountain typed gap - Google Patents

Abstract

The present invention relates to a slim reactor using a fractional gap; A bobbin in which an inner seating hole is formed so that the inner iron core is inserted, and a coil is wound around the outer circumferential surface of the bobbin, and insulated, and an outer iron core surrounding the outer portion of the bobbin.

According to the present invention, there is no joint surface of the reactor for joining the conventional E-type iron core and the I-type iron core, the structure having only a certain gap (gap) while slimming the reactor while maintaining the characteristics of the reactor constant loss This is minimized, and the outer iron core completely wraps the outer portion of the coil to enable magnetic shielding, and thus the structure is simple without the need for a separate enclosure.

Reactor, Iron Core, Coil, Magnetic Shield

Description

Slim reactor using fountain typed gap

1 is a perspective view for explaining an example of a conventional general external iron magnetic circuit device,

2 is a perspective view for explaining an example of a conventional general iron-resistant magnetic circuit device,

3A is a perspective view illustrating a slim reactor using a fractional gap according to a first embodiment of the present invention;

3B is a cross-sectional view taken along the line 'A'-'A' of FIG. 3A.

3C is a cross-sectional view taken along the line 'B'-'B' of FIG. 3A.

FIG. 3D is an exploded perspective view of the slim reactor using the fractional gap according to FIG. 3A;

FIG. 3E is an exploded cross-sectional view of the slim reactor using the fractional gap according to FIG. 3A;

4A is a perspective view illustrating a slim reactor using a fractional gap according to a second embodiment of the present invention;

4B is a cross-sectional view taken along the line 'C'-'C' of FIG. 4A,

5A is a side cross-sectional view illustrating a slim reactor using a fractional gap according to a third embodiment of the present invention;

FIG. 5B is an exploded perspective view illustrating a slim reactor using a fractional gap according to FIG. 5A;

FIG. 6 is a perspective view illustrating a core body illustrated to describe a slim reactor using a fractional gap according to a fourth embodiment of the present invention;

FIG. 7 is a side cross-sectional view illustrating a slim reactor using a fractional gap according to a fifth embodiment of the present invention;

8 is a side cross-sectional view illustrating a slim reactor using a fractional gap according to a sixth embodiment of the present invention;

9A and 9B are cross-sectional views illustrating a slim reactor using a fractional gap according to a seventh embodiment of the present invention.

*** Explanation of symbols for main parts of drawing ***

110: coil 120: bobbin

122: internal seating hole 130: core body

131: I-type iron core 133: ferrite

140: iron core 141: the first 'c'-type iron core

142: second 'c'-type iron core 150: insulating tape

160: the first closing cap 170: the second closing cap

180: iron core for the sharer

The present invention relates to a slim reactor using a fractional gap, and more particularly, to a slim reactor capable of slimming and magnetic shielding the reactor by improving the iron core structure, simplifying the manufacturing process, and increasing the efficiency of the device. .

In general, magnetic circuit elements using an electromagnetic induction phenomenon such as a reactor, a transformer, or a leakage transformer are classified into an outer iron type in which a core wraps around a coil, and an inner iron type in a coil wrap around an iron core. In order to achieve a closed circuit by crossing the coil constituting the electric circuit and the iron core constituting the magnetic circuit to each other and then to change the magnetic flux by applying AC power.

That is, as can be seen from Figs. 1 and 2 showing an example of the outer convex and inner convex magnetic circuit elements, the magnetic circuit elements 10 and 11 have an E-type iron core 11 and 21 formed by cutting and forming a steel sheet. And the I-type iron cores 13 and 23 are combined with each other to form a closed circuit, and the coils 12 and 22 are wound hundreds to thousands of times on the E-type iron cores 11 and 21 to enable electromagnetic induction. have.

However, in the case of a reactor, which is a conventional general magnetic circuit element formed by combining the E-type iron cores 11 and 21 and the I-type iron cores 13 and 23 as described above, the volume of the discharge lamp is required to be slim. There is a problem in that it is difficult to apply to ballasts, notebooks, and other various devices.

Of course, in order to solve this, the E-type iron cores 11 and 21 and the I-type iron cores 13 and 23 can be formed long and left to be slim, but accordingly the height is not lowered as the coil is wound to both sides. The convexity increases the length of the coil windings, which consumes a lot of materials and increases the resistance loss, making it difficult to slim down the magnetic circuit as a whole.

In addition, although the E-type iron cores 11 and 21 and the I-type iron cores 13 and 23 can be formed long up and down, the weight can be reduced, and accordingly, the amount of work is increased as the amount of coil winding made by hand increases. In addition, since the noise and resistance losses increase, it is also difficult to slim the magnetic circuit device as a whole.

In addition, when the E-type iron cores 11 and 21 and the I-type iron cores 13 and 23 are bonded, there is a problem that an eddy loss occurs at the joint, and this loss is a rough cut surface (ie, a longitudinal section). E-type iron cores (11, 21) having a and I-type iron cores (13, 23) has a problem that becomes larger as the bonding.

In addition, since the cores of different types (ie, E-type and I-type) must be provided, the manufacturing cost goes up, and in the case of the E-type iron cores 11 and 21, the shape is complicated and the manufacturing process is complicated. There was a problem with losing.

In addition, due to the configuration in which the coils 12 and 22 are not perfectly located inside the iron core and a portion of the coils 12 and 22 are exposed to the outside, magnetic shielding is not possible. In order to self-shield, it is necessary to provide a separate enclosure with a predetermined interval, which also causes an increase in manufacturing cost, and still has the disadvantage of poor workability.

In addition, when the reactor, which is such a magnetic circuit element, is used as a ballast for a street lamp such as a high-pressure discharge lamp, there has been a limitation in the installation space because the external dimension of the filler that is filled inside the enclosure for magnetic shielding becomes large.

 Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to slim down the reactor and improve the characteristics of the reactor by a structure having only a constant gap without a joint surface of a conventional E-type iron core and an I-type iron core. It is to provide a slim reactor using a fractional gap having a structure that keeps constant to minimize losses.

Another object of the present invention is a structure in which the magnetic flux passes in a single direction within the iron core, so it is possible to use a material such as oriented silicon steel sheet, Amorphos, etc., which was difficult to use in the existing method, so that loss can be reduced and a highly efficient product can be made.

It is still another object of the present invention to provide a slim reactor using a fractional gap of a structure capable of self-shielding and having a simple structure without the need for an enclosure, thus making it easy to manufacture and lowering the manufacturing cost.

The present invention for achieving the above object;

A bobbin in which an inner seating hole is formed so that the inner iron core is inserted, and a coil is wound around the outer circumferential surface of the bobbin, and insulated, and an outer iron core surrounding the outer portion of the bobbin.

At this time, the bobbin is characterized in that the rectangular inner seating hole is formed through the center of the rectangular body in the longitudinal direction, and the inner core of the rectangular inner seating hole is inserted a plurality of I-type iron core.

And, the coil is characterized in that any one of the (LITY) wire, enamel wire, or aluminum ring.

In addition, the outer side of the coil is characterized in that the insulating tape is further wound.

In addition, the outer iron core has a first 'c'-type iron core and a second' c'-type iron core having a cross-section having a 'c' shape so that the outer side of the bobbin may be bent by bending both sides of the plate core. It is characterized by a nested structure.

In this case, the first and second 'c'-type iron core is characterized in that a plurality of stacked structure.

On the other hand, both ends of the inner seating hole of the bobbin on which the inner core is seated is characterized in that it is finished with insulating means.

In addition, both ends of the outer core body is characterized in that the first and second closing caps are fitted.

At this time, the first and second closing cap is characterized in that made of any one of plastic, iron, aluminum material.

In particular, the first closing cap; A first seating groove is formed in front of the first body so that one end of the outer core body is inserted, and a first fixing hole communicating with the first seating groove is formed on a surface of the first body. When the one end is inserted into the first seating groove, the first fixing pin for fastening the outside of the one end of the outer core core to prevent the outer core core from being separated is fastened to the first fixing hole, The rear side of the first body is provided with a horizontally projecting first support, characterized in that the first fixing groove is formed on the surface of the first support.

In addition, the second closing cap; A second seating groove is formed in front of the second body so that the other end of the outer core is inserted, and a second fixing hole communicating with the second seating groove is formed on a surface of the second body, and the outer iron core A second fixing pin is fastened to the second fixing hole to prevent the outer core body from being detached by pressing the other end of the outer core body when the other end of the insert is inserted into the second seating groove. And a second support part protruding horizontally from the rear side of the second body, and a second fixing groove formed on a surface of the second support part.

On the other hand, the bobbin is characterized in that a plurality is provided inside the outer core body.

At this time, between the plurality of bobbins are further provided with iron core pieces for the sharer to maintain a uniform flux distribution between the coils, the core liner for the sharer is characterized in that a structure in which a plurality of I-type iron cores are stacked. do.

In addition, the bobbin has a circular inner seating hole is formed in the center of the circular body, the inner core is rolled iron core in the form of a roll, characterized in that the inner core is formed in a multi-layered state.

In addition, the bobbin is a circular inner seating hole is formed in the center of the circular body, the inner seating hole is characterized in that the inner core made of a ferrite of the cylindrical shape is inserted.

Hereinafter, with reference to the accompanying drawings, a slim reactor using a fractional gap according to the present invention will be understood by the embodiments described in detail.

3A is a perspective view illustrating a slim reactor using a fractional gap according to the first embodiment of the present invention, FIG. 3B is a cross-sectional view taken along the line 'A'-'A' of FIG. 3A, and FIG. 3D is an exploded perspective view showing a slim reactor using the fractional gap according to FIG. 3A, and FIG. 3E is an exploded view showing the slim reactor using the fractional gap according to FIG. 3A. 4A is a perspective view illustrating a slim reactor using a fractional gap according to a second embodiment of the present invention, FIG. 4B is a cross-sectional view taken along the line 'C'-'C' of FIG. 4A, and FIG. 1 is a cross-sectional view illustrating a slim reactor using a fractional gap according to a third embodiment of the present invention, FIG. 5B is an exploded perspective view illustrating a slim reactor using the fractional gap according to FIG. 5A, and FIG. 6 is a fourth embodiment of the present invention. To describe the slim reactor using the fractional gap according to the embodiment Figure 7 is a perspective view showing the core body, Figure 7 is a side cross-sectional view showing a slim reactor using a fractional gap according to a fifth embodiment of the present invention, Figure 8 is a fountain according to a sixth embodiment of the present invention One side cross-sectional view illustrating a slim reactor using a type gap, and FIGS. 9A and 9B are cross-sectional views illustrating a slim reactor using a fractional gap according to a seventh embodiment of the present invention.

First, Figures 3a to 3e is a view showing a first embodiment of a slim reactor using a fractional gap in accordance with the present invention, the reactor 100 is the coil 110 is wound around its outer peripheral surface but the longitudinal direction therein Accordingly, the bobbin 120 having a hollow inner seating hole 122 is formed, the inner core body 130 inserted into the inner seating hole 122 in a laminated form, and the outside of the bobbin 120 in a laminated form. It is made of an outer iron core 140 wrapped in.

Hereinafter, each component of the slim reactor using the fractional gap according to the present invention will be described in detail.

The bobbin 120 is formed by injection molding a synthetic resin, and the inner seat hole 122 of the quadrangular (four 角) in the longitudinal direction is formed in the center of the body 121 of a substantially rectangular hollow shape having a predetermined length.

At this time, the body 121 is manufactured by dividing in the longitudinal direction in order to facilitate injection molding using a synthetic resin material, and the corresponding coupling hole (not shown) and the engaging piece (not shown) corresponding to each It is combined by integrally by forming a fitting.

The coil 110 is wound around the surface of the bobbin 120. At this time, since the coil 110 is directly wound in the state in which the iron core is inserted into the bobbin 120, the magnetic noise problem due to the vibration of the inner core body cannot occur, and the coil 110 reduces the number of windings. For this purpose, it is preferable to use a LITY wire, an enameled wire, or an aluminum round wire.

For example, when the coil 110 is used as an aluminum ring, the specific gravity is about 30% lower than that of the conventional copper, but the resistivity is about 130% higher than that of copper. Therefore, the surface area of the reactor 100 is widened, so that heat dissipation is well performed, and thus a product having a long life and low loss can be manufactured at a low price.

On the other hand, the coil 110 is wrapped with an insulating tape 150 to insulate the coil 110 and the outer core body 140 provided on the outside.

In this way, the inner core 130 is inserted into the inner seating hole 122 of the bobbin 120 in the coil 110 is wound.

In this case, the inner core body 130 is a state in which the I-type iron core 131 is stacked in a multi-layered state is inserted into the inner seat hole 122 of the bobbin 120 to be fixed in the longitudinal direction.

On the other hand, the inner core body 130 is composed of only one shape of the I-type iron core 131, compared with the conventional E-type iron core, compared to the core and the iron cores located on both the center side and the outside has a long rectangular shape As it is made of I-type, it is possible to reduce the thickness of the iron core, as well as the number of windings of the coil 110 per layer wound on the surface of the bobbin in which the long I-type iron core 131 is built. In comparison, the number of layers of the winding coil 110 is relatively low, so that the slope of conducting heat generated from the inside of the coil is lowered as a whole, so that the local temperature rise is small and the life is long, and the reactor can be slimmed. Do.

On the other hand, the outside of the bobbin 120 is wrapped with the outer core core 140 to the outside of the insulating tape 150 surrounding the coil 110.

At this time, the outer core body 140 is also formed of a 'c' shape that can be inserted into the side of the bobbin 120 by bending both sides of the iron core of the plate to surround the outer surface of the bobbin 120 '-Type iron cores are stacked in multiple layers.

More specifically, the outer core body 140 includes a first 'c'-type iron core 141 having a multilayered E-type iron core 141 so as to surround the outer surface portion of the bobbin 120, and the first' c '. Both ends of the first 'c'-type iron core 141 are formed of the second' c'-type iron core 142 to finish the opening of the -type iron core 141, and the first and second ' The bent portions of the '-type iron cores 141 and 142 overlap each other.

The first 'c'-type iron core 141 and the second' c'-type iron core 142 is a stacked structure of a plurality as compared to the case of a single sheet, as well as significantly reducing the noise, The structure is applicable to both oriented silicon steel sheets and non-oriented silicon steel sheets. In addition, since the stacking quantity of the first 'c'-type iron core 141 and the second' c'-type iron core 142 is small, the assembly and processing costs may be reduced.

Meanwhile, the bobbin 120 is inserted into the first 'c'-type iron core 141, and one side of the bobbin 120 is closed by closing the opening of the bobbin 120 with the second' c'-type iron core 142. The outer surface is completely wrapped to enable magnetic shielding.

Therefore, the ferromagnetic outer iron core 140 is completely wrapped around the coil 110, and completely blocked from the outside, when the reactor 100 according to the present invention is used later as a ballast, there is no need for a separate enclosure, material consumption Minimize and at the same time has the advantage of improved assembly.

On the other hand, the structure of the reactor 100 according to the present invention is the magnetic flux flows through both ends of the core core 130 provided in the central inner seating hole 122 of the bobbin 120, such magnetic flux is The bobbin 120 flows to the outer core body 140 completely surrounding the outer surface.

In this case, the inner core body 130 is located in the center and the outer core body 140 is made of a structure surrounding the outer portion is spaced apart from the inner core body 130 by a predetermined distance.

Accordingly, the inner core body 130 and the outer core body 140 has a gap at both ends thereof, and in particular, a fractional gap formed in a fractional shape is formed so that the magnetic flux of the inner core body 130 is the outer core body 140. From the furnace or the outer core body 140 flows through both ends of the inner core body 130.

That is, the magnetic flux flowing through one end of the central core body 130 flows through one end of the outer core body 140 while spreading in a fountain shape and again of the core body 140. Through the other end flows to the other end of the core body 130.

At this time, the outer core body 140 has the structure of the first 'c'-type iron core 141 and the second' c'-type iron core 142 by bending both sides in the longitudinal direction of the magnetic flux through the iron core cross-section By adopting the structure bent in the passing direction and in the horizontal direction, there is little loss fluctuation due to the bent surface and rather the loss is reduced.

On the other hand, both ends of the inner seating hole 122 of the bobbin 120 in which the inner core body 130 is embedded, an insulation means 135 is inserted and installed so as to reduce eddy loss that may occur in the inner core. Or the filling and coating, the length of the outer core body 140 is longer than the inside to reduce the occurrence of stray loss on the outside, the length of the finishing caps (160, 170) on both sides to increase the outside Do not come into contact with magnetic material.

As the insulating means 135, kraft paper (KP), nomex paper, manila paper, or a heat-resistant film or the like, or a heat-resistant paint or Teflon, epoxy and varnish having excellent insulation properties, durability and mechanical strength, etc. This can be used.

In addition, by further filling the varnish or epoxy in the inner side of the finishing caps 160 and 170 and the outer core body 140 on both sides, it is preferable to prevent the phenomenon of condensation occurring inside.

Meanwhile, first and second closing caps 160 and 170 are fastened to both ends of the outer core body 140 having a structure surrounding the bobbin 120.

In this case, the first and second closing caps 160 and 170 are made of plastic, iron, and aluminum, and the first and second closing caps 160 and 170 are formed in the same shape.

First, the first closing cap 160 is formed with a first seating groove 162 in front of the first body 161 such that one end of the outer core body 140 is inserted a predetermined depth or more, the first body A first fixing hole 163 communicating with the first seating groove 162 is formed on a surface of the 161, and the first fixing pin 163a is fastened to the first fixing hole 163.

That is, when one end of the outer core body 140 is inserted into the first seating groove 162 to press the outside of one end of the outer core body 140 to prevent the outer core body 140 from being separated. The first fixing pin 163a for fastening.

On the other hand, the first support portion 164 is provided on the rear side of the first body 161 of the first closing cap 160 is horizontally projected.

At this time, the first support part 164 is for convenience when fixed to a specific electric device, and a constant first fixing groove 164a is formed on the surface of the first support part 164 to form a fastening means such as a screw ( It is possible to fix using (not shown).

Next, the second closing cap 170 is formed with a second seating groove 172 in front of the second body 171 so that the other end of the outer core body 140 is inserted a predetermined depth or more, the second A second fixing hole 173 is formed on the surface of the body 171 to communicate with the second mounting groove 172, and the second fixing pin 173a is fastened to the second fixing hole 173.

Accordingly, when the other end of the outer core body 140 is inserted into the second seating groove 172, the second fixing pin 173 presses the outer side of the other end of the outer core body 140 so that the outer core The second fixing pin 173a is fastened to prevent the sieve 140 from being separated.

On the other hand, the second support portion 174 which is horizontally protruded is also provided on the rear side of the second body 171 of the second closing cap 170, a constant second fixing groove (174a) is formed on the surface, such as a screw It can be fixed using a fastening means (not shown).

4A to 4C illustrate a slim reactor using a fractional gap according to a second embodiment of the present invention.

Accordingly, the coil 110 is wound around its outer circumferential surface and has a plurality of bobbins 120 having a structure in which the inner core body 130 is inserted into the inner seat hole 122 in the outer core body 140. .

As such, by providing a plurality of bobbins 120 inside one outer core body 140, when used as a ballast as an example, it has the advantage that it can be used as a multi-class ballast, such as 2 or 3 light.

In this case, it is preferable to form a common path between the plurality of bobbins 120 so as to maintain a uniform flux distribution between the coils 110.

Therefore, the iron core piece 180 for the sharer is inserted between the adjacent bobbins 120.

Of course, in this case, the iron core piece 180 for the sharer is to use the I-type iron core 181 laminated in multiple layers, the bobbin of the structure in which the inner core body 130 is inserted into the inner seat hole 122 120 may be provided in two, three or more suitable numbers depending on the application object, and all of them are within the same category.

5A and 5B illustrate a slim reactor using a fractional gap according to a third embodiment of the present invention.

According to this, the bobbin 120 provided inside the outer core body 140 may have a circular shape.

Such bobbin 120 has a circular inner seating hole 123a is formed in the center of the circular body 121a, and the inner core body 130 inserted into the inner seating hole 122a has a circular shape. The iron core 132 rolled in a roll form and formed in a multilayer is inserted.

Meanwhile, the coil 110 is wound on the surface of the bobbin 120 and is provided inside the outer core body 140 in a state of being wrapped with an insulating tape 150.

Of course, since the configuration of the remaining outer core body 140 or the non-magnetic body is substantially the same as the first embodiment, description thereof will be omitted, the shape of the outer core body 140 is the bobbin 120 It is made of a semi-circle to correspond to the shape of.

At this time, the circular bobbin 120 is not shown separately in the drawings, it is also preferably provided with a plurality of the inner core core 140. In this case, it is desirable to insert the iron core piece for the sharer between the plurality of bobbin 120.

Meanwhile, the inner core body 130 may use a ferrite 133 having a cylindrical shape as shown in FIG. 6. At this time, it is also possible to use an amorphous instead of ferrite, it is possible to improve the productivity of the slim reactor using the fractional gap according to the present invention, there is an advantage that can reduce the manufacturing cost.

In addition, Figure 7 is a view showing a slim reactor using a fractional gap according to a fifth embodiment of the present invention, according to the outer core body 140 surrounding the coil bobbin 110 is wound around the bobbin 120 ) Is rolled in the shape of a square roll in the shape of the bobbin 120 to form an iron core 143 formed in multiple layers.

Therefore, since the outer part of the coil 110 is completely wrapped, the magnetic shielding efficiency can be further maximized.

8 is a view showing a slim reactor using a fractional gap according to a sixth embodiment of the present invention, whereby the outer core body 140 surrounding the circular bobbin 120 in which the coil 110 is wound. ) Is rolled in the shape of a circular roll (roll) in the form of a core (143) formed in a multi-layered, the outer part of the coil 110 is completely wrapped, so that the magnetic shielding efficiency can be further maximized. Will be.

In addition, the slim reactor using the fractional gap according to the embodiments of FIGS. 7 and 8 may include a plurality of bobbins inside one outer core and may be used as a multi-level ballast such as a second lamp or a third lamp. to be.

9A and 9B are cross-sectional views illustrating a slim reactor using a fractional gap according to a seventh embodiment of the present invention, whereby the center of the bobbin 120 has an I-type iron core 131 in a multilayer manner. Inserted in a stacked state, the outside of the bobbin 120 is wound around the coil 110, the outer core body 140 surrounding the circular bobbin 120, as the appearance of the bobbin 120 in the form of a circular roll (roll) Rolling iron to form iron core 143 in a multilayer.

In addition, the iron core 143 may be rolled up in a roll shape so that a plurality of iron cores 143 are provided inside the second outer core body 190, thereby further maximizing self-shielding efficiency, and one second outer core core. A plurality of bobbins 120 may be provided inside the sieve 190 to be used as multi-class ballasts, such as a second lamp or a third lamp.

At this time, when the plurality of bobbin 120 is configured to be inserted into the second outer core body 190, the iron core 143 is omitted, and between the bobbin 120 and the bobbin 120 iron core for the sharer You can insert a piece.

Although the preferred embodiment of the present invention has been described above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to the scope of the present invention to be substantially equivalent to the embodiment of the present invention. Various modifications can be made by those skilled in the art without departing from the scope of the present invention.

As described above, according to the present invention, there is no joint surface of the reactor for joining the conventional E-type iron core and the I-type iron core, and the structure has only a constant gap, thereby making the reactor slim and maintaining the characteristics of the reactor constant. The advantage is that the losses are minimized.

In addition, as it is a slim type, there have been many design limitations because the product has not been slimmed down in the field of application devices that use reactors, and it is possible to solve the problem of increasing the appearance more than necessary. It is large and it is possible to use efficient space when installed in the building.

In addition, since the slope from which the heat generated from the inside of the coil is conducted to the outside becomes low, the local temperature rise is small, and thus the product life is long.

In addition, since the magnetic flux passes in a single direction within the iron core, a material such as a oriented silicon steel sheet or an amorphous force can be used, thereby reducing losses, thereby making a highly efficient product.

In addition, the coil is wound directly in the state that the iron core is inserted into the bobbin, so the magnetic noise problem can not occur due to the vibration of the inner iron core material, the outer steel core is a c-shaped steel rather than a plate shape, so the mechanical strength is large, the magnetic noise phenomenon There is almost no advantage.

In addition, the productivity is much easier than conventional in terms of iron core processing, there is the advantage that the processing cost is low, the investment cost is low because the quantity is small, and the assembly work is also easy to increase the productivity, thereby reducing the production cost, not manual work Mechanization is possible.

In addition, since the outer core core is wrapped around the outside of the coil to enable magnetic shielding, the structure is simple without the need for a separate enclosure.

In particular, the reactor can be easily manufactured and the manufacturing cost can be lowered because it does not require an enclosure, and when used as a ballast for the street lamp, it is mounted at the bottom of the street lamp pole, so its external dimension is reduced, thereby reducing the diameter of the pole lamp. Significantly reduce manufacturing costs.

Claims (20)

Bobbin with the inner seat hole is formed so that the inner core is inserted, A coil wound around the outer circumferential surface of the bobbin, The coil is configured to include an outer core body surrounding the outer portion of the bobbin wound, The bobbin is formed in the center of the rectangular body through the rectangular inner seating hole is formed in the longitudinal direction, the rectangular inner seating hole is a fractional gap, characterized in that the inner core core laminated with a plurality of I-type iron core is inserted Slim reactor used. delete The method of claim 1, The coil is a slim reactor using a fractional gap, characterized in that any one of the (LITY) wire, enamel wire, or aluminum ring. Bobbin with the inner seat hole is formed so that the inner core is inserted, A coil wound around the outer circumferential surface of the bobbin, Insulating tape configured to surround the outside of the coil and Slim reactor using a fractional gap, characterized in that the outer core is provided to surround the outer portion of the coil insulated by the insulating tape. Bobbin with the inner seat hole is formed so that the inner core is inserted, A coil wound around the outer circumferential surface of the bobbin, The coil is configured to include an outer core body surrounding the outer portion of the bobbin wound, The outer core body is bent both sides of the iron core plate and the cross-section of the first 'c'-type iron core and the second' c'-type iron core having a 'c' shape so that the outer portion of the bobbin can be inserted Structured, The first reactor and the second 'c'-type iron core is a slim reactor using a fractional gap, characterized in that a plurality of stacked structure. delete Bobbin with the inner seat hole is formed so that the inner core is inserted, A coil wound around the outer circumferential surface of the bobbin, The coil is configured to include an outer core body surrounding the outer portion of the bobbin wound, Both ends of the inner seating hole of the bobbin on which the inner core is seated is a slim reactor using a fractional gap, characterized in that the finishing with insulating means. Bobbin with the inner seat hole is formed so that the inner core is inserted, A coil wound around the outer circumferential surface of the bobbin, The coil is configured to include an outer core body surrounding the outer portion of the bobbin wound, Slim reactor using a fractional gap, characterized in that the first and second closing caps are fitted to both ends of the outer core body. The method of claim 8, The first and second closing cap is a slim reactor using a fractional gap, characterized in that made of any one of plastic, iron, aluminum. The method of claim 8, wherein the first closing cap; A first seating groove is formed in front of the first body so that one end of the outer core body is inserted, and a first fixing hole communicating with the first seating groove is formed on a surface of the first body. The first fixing pin is fastened to the first fixing hole to prevent the outer core from being detached by pressing the outer end of the one end of the outer core when the one end is inserted into the first seating groove. Slim reactor using type gap. The method of claim 10, And a first supporting portion protruding horizontally from the rear side of the first body, and a first fixing groove formed on a surface of the first supporting portion. The method of claim 8, wherein the second closing cap; A second seating groove is formed in front of the second body so that the other end of the outer core is inserted, and a second fixing hole communicating with the second seating groove is formed on a surface of the second body, and the outer iron core A second fixing pin is fastened to the second fixing hole to prevent the outer core body from being detached by pressing the other end of the outer core body when the other end of the insert is inserted into the second seating groove. Slim reactor using fractional gap. The method of claim 12, The rear side of the second body is provided with a second support for horizontal projection, the surface of the second support is a slim reactor using a fractional gap, characterized in that the second fixing groove is formed. Bobbin with the inner seat hole is formed so that the inner core is inserted, A coil wound around the outer circumferential surface of the bobbin, The coil is configured to include an outer core body surrounding the outer portion of the bobbin wound, The bobbin is a slim reactor using a fractional gap, characterized in that a plurality is provided inside the outer core body. 15. The method of claim 14, A slim reactor using a fractional gap, characterized in that the iron core piece for the sharer is further provided between the plurality of bobbins to maintain a uniform flux distribution between the coils. The method of claim 15, The reactor core piece is a slim reactor using a fractional gap, characterized in that the structure is stacked a plurality of I-type iron core. Bobbin with the inner seat hole is formed so that the inner core is inserted, A coil wound around the outer circumferential surface of the bobbin, The coil is configured to include an outer core body surrounding the outer portion of the bobbin wound, The bobbin has a circular inner seating hole is formed in the center of the circular body, and the inner seating hole is a slim reactor using a fractional gap, characterized in that the inner core is formed in a multi-layered state by rolling the iron core in the form of a roll . Bobbin with the inner seat hole is formed so that the inner core is inserted, A coil wound around the outer circumferential surface of the bobbin, The coil is configured to include an outer core body surrounding the outer portion of the bobbin wound, The bobbin has a circular inner seating hole is formed in the center of the circular body, the inner seat is a slim reactor using a fractional gap, characterized in that the inner core is made of a cylindrical ferrite is inserted. Bobbin with the inner seat hole is formed so that the inner core is inserted, A coil wound around the outer circumferential surface of the bobbin, The coil is configured to include an outer core body surrounding the outer portion of the bobbin wound, The outer core is a roll-shaped slim reactor using a fractional gap, characterized in that consisting of iron cores rolled in a multilayer. The method of claim 19, The iron core is a slim reactor using a fractional gap, characterized in that a plurality is provided inside the second outer core body.

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